Hydraulic ram.



. PATBNTED DEG. 29, 190s. s. s. SMITH. l HYDRAULIC RAM.

APPLICATION FILED PEB. 6. 1903.

N0 MODEL.

UNITED STATES Patented December 29, 1903.

PATENT OEEICE.

SANDIE S. SMITH, OF CHESTER, PENNSYLVANIA, ASSIGNOR TO NIAGARA HYDRAULICENGINE COMPANY, OF CHESTER, PENNSYLVANIA, A COR- PORATI ON OFPENNSYLVANIA.

HYDRAULIC RAM.

SPECIFICATION forming part of Letters Patent No. 748,113, dated December29, 1903.

duplication tiled February 6 1903. Serial No. 142,184. CND model.)

.To all whom, t may concern.-

Be it known that I, SANDIE S. SMITH, a citizen of the United States,residing at Chester, in the county of Delaware and State ofPennsylvania, have invented certain new and useful Improvements inHydraulic Rams, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to hydraulic rams, and has for its object toimprove the simplicity and eflciency of the device, it being in thegeneral nature of an improvement upon the construction set forth inLetters Patent No. 529,914, granted November 24, 1894, to Jones andWetmore.

To this end my invention consists in certain novel features, which Iwill now proceed to describe and then will particularly point out in theclaims.

In the accompanying drawings, Figure lis a plan view of a rain embodyingmy invention, the same being shown partly in horizontal section. Fig. 2is a vertical sectional View taken on the line ma; of Fig. l and lookingin the direction of the arrows, and Fig. 3 is a sectional view taken onthe line 'y y of Fig. 2 and looking in the direction of the arrows.

In the said drawings, 1 indicates the base of the ram, which ispreferably formed in a single piece and has provided therein at one enda valve-chamber 2 for the impetusvalve and at the other end avalve-chamber 3 for the main valve.

4 indicates an inlet-opening to which the drive-pipe is connected, and 5indicates a passage connecting the valve-chambers 2 and 3.

The valve-chamber 2 is closed at its upper end by a cover 6, secured inplace in 1 he manner hereinafter described auddiaving formed therein awaste-outlet opening 7, controlled by the impetus-valve 8. This lattervalveis of a disk-like form and of greater diameter than the opening 7,which it closes when raised.

9 indicates the impetus-valve stem, which travels through a combinedstop and guide lO, supported by legs 11 on top of the cover 6. The upperend of the valve-stem 9 is threaded, as indicated at 12, to receive oneor more nuts 13, which may be adjusted so as to limit the downwardmovement of the impetus-valve, and thus regulate the operation of theram in a well-known manner.

Heretofore an excessive waste of Water has occurred at the impetus-valve, owing to the water iiowing too freely around the valvebefore it is lifted. To prevent this, I provide in the upper portion ofthe valve-cham ber 2, below the Valve 3, a diaphragm 14, having oppositethe valve an opening 15, which serves to restrict the flow of the wastewater and cause it to flow directly against the under side of the valve.In this way the flow of water being restricted the amount of waste isless, and as the water acts more efficiently and directly against thevalve it is closed with less waste.

The valve-chamber 3 of the main valve is circular in form, beingsurrounded by a cylindrical wall 16, which is in turn surrounded by anannular space 17 between the wall 16 and the circular outer wall 18 ofthe body of the ram. It is true that at one side, Where the passage 5connects with the chamber 3, these annular walls and spaces areinterrupted; but with this exception their form is as described. Themain valve 19, which controls the outlet of the valve-chamber 3, islocated at the top of said valve-chamber, where the said outlet islocated, and it consists of afleXible disk, of rubber or the like,secured at its center and free at its margin. To secure this valve inposition, I employ aspider 20, having an annular marginal portion 21,seated on top of the Wall lo', a packing 22 being interposed betweenthem. Both the spider and the wall have projected lugs 23 to receivebolts 24, by which the spider is held in place. Arms 25 extend inwardfrom the annular portion to a central sleeve 26, which receives a bolt27, which fastens the center of the disk 19 to the spider. This ispreferably eected by means of a conical stop 28, interposed between thebolt-head and disk, said conical stop serving to limit the openingmovement of the disk valve in an obvious manner.

It will be seen that the main valve and the outlet which it controls areso located that the water issuing from the valve-chamber 3 is equallydistributed in all directions to the annular space 17. Outletconnections 29 lead from this annular space on the three free sidesthereof, so that the delivery-pipe may be connected to any side of thedeliverychamber formed by the annular space l7,with an assurance that anequal supply of water will be delivered to said pipe wherever it may beconnected.

30 indicates the air-chamber, which is provided atits lower end with ahorizontal flange 3l. The base is provided with a corresponding flange32, and these flanges are provided with marginal notches 33, whichregister with each other and are adapted to receive the connecting-bolts34. It will be seen that these bolts may be readily slipped intoposition and as readily removed without necessi- YI form an air-inletport 39 in that portion of the base'lying between the two valve-chambersand above the connectingpassage The lower end of this port opensinto thetop or highest part of the connecting-passage, and it extends thenceupward and outward to the vertical side of the intermediate .part of thebase, in which it has its external opening. By reason of this locationthe said airinlet port is less liable to become clogged or obstructed,its outer end being unexposed, while its connection with theconnecting-passage 5 is such as to insure the maximum efficiency ofoperation.

I do not wishto be understood as limiting myself to the precise detailsof construction hereinbefore described, and shown in the accompanyingdrawings, as it is obvious that said details may be modified withoutdeparting from the principle of my invention.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In a hydraulic ram, the combination, with a valve-chamber havingaVertical wasteoutlet at the tup, and a diaphragm located below saidoutletand havinga restricted opening in line therewith, the spacebetween said diaphragm and the top of the chamber being free andunobstructed, of a disk valve located in said space and having adiameter less than that of the valvechamber and greater than that of thewaste-outlet, its lower face and edge being exposed to the waterentering and passing through said space, and

its range of movement being such as to per-V mit it to close theWaste-outlet in the top of the valve-chamber when fully raised,substantially as described.

2. In a hydraulic ram, the combination, with a main valve-chamber havinga substantially circular wall and au outlet-valve at the top, of a bodysurrounding the same and separated therefrom to form a substantiallyannular delivery-chamber surrounding the valve-chamber and below theoutlet thereof, substantially as described.

3. In a hydraulic ram, the combination, with a main valve-chamber havinga substantially circular wall and an outlet-valve at the top, of a bodysurrounding the same and separated therefrom to form a substantiallyannular delivery-chambersurrounding the valve-chamber and below theoutlet thereof, said body having a plurality of delivery-pipe-connectionopenings located at different points of its circumference, substantiallyas described.

In testimony whereof I affix my signature in presence of two witnesses.

SANDIE S. SMITH.

Witnesses:`

E. C. WHITE, CHAs. R. LONG.

